TW200305046A - Liquid crystal display apparatus and its manufacturing method (1) - Google Patents

Abstract

The subject of the present invention is to provide a liquid crystal display (LCD) apparatus, which is capable of reducing short-circuit generated between source wiring and the common electrode, and its manufacturing method. In the invented LCD apparatus, a voltage is added between the pixel electrode 6 and the common electrode 5, and the so-called lateral electric field manner is obtained by adding the electric field roughly parallel to the substrate plane to the liquid crystal layer. In the LCD apparatus, the source electrode 3 is overlapped with one part of the common electrode 5 through the separation of the insulation film 4. The insulation film 4 is composed of plural insulation films 4a and 4b.

Description

200305046 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to an active matrix liquid crystal display device of a transverse electric field method and a manufacturing method thereof. ^ [Prior art] In recent years, for example, Japanese Unexamined Patent Publication No. 8-2547 1 discloses that in an active-matrix liquid crystal display device, the direction of the electric field applied to the liquid crystal is set to a transverse electric field direction parallel to the substrate. It is a technique mainly used to obtain a super wide viewing angle. When this method is adopted, it is clear that there is almost no change in contrast and the inversion of the tone level when changing the viewing direction (Reference: M.Oh-e, others, Asia Display, 95, ρρ · 577- 58 0). FIG. 13 (a) is a plan view illustrating a daylight portion of a conventional liquid crystal display device using a conventional lateral electric field method. Fig. 13 (b) is a sectional view in which a part of it is enlarged. In the figure, 100 is a TFT array substrate, and 200 is a color phosphor film (cf) Wu plate. ! Is a plurality of scans formed on an insulating substrate; = =; = lines, 2 is a gate insulating film, 3 is a source wiring, 4 is an insulating film provided on the source wiring 3, 5a and 5]; ) Is configured to be extremely ugly with the gate wiring, especially the common electrode 5, ", core ^ and = pass electrode 5b in this example. Therefore, when a voltage is applied to the source wiring, the voltage is used to The electric field E is generated, and the arrangement state of the liquid crystal set between the m-array base and the CD ′ 00 is changed. For this reason, the structure t shown in FIG. 13 and the width shown by L1 in the figure need to be widened. Because the penetration of light is limited, there is a problem that the aperture ratio becomes low. In order to solve this problem, the structure shown in Fig. 1 (a) and Fig. 1 (b) is 200305046.

Proposal comes out. In this structure, the common electrode 5 covers the source wiring 3 and is arranged so that two electrodes overlap each other. With this configuration, the electric field generated by the source wiring 3 cannot be reached by the liquid crystal because it is blocked by the common electrode 5, and the change in the white state of the liquid crystal can be reduced. Because of &, the width L2 that restricts light transmission can be reduced, and the aperture ratio can be raised. [Summary] The problems to be solved by the invention:

However, in the structure shown in FIG. 1, the source wiring 3 and the common current phase 5 Γ: T have a problem that a short circuit occurs. As shown in Fig. 4 ")", pinhole defects 41 and 42 will occur between the source wiring 3 and the common electrode 5, resulting in a short circuit. The present invention was invented in order to solve such a problem, and the purpose is to provide a liquid crystal display device that can reduce the source wiring board ugly iS thunder and patter A t. In the face ▲ deep / ..., a short circuit occurs between the through electrodes And its manufacturing method. Means for solving the problem: one pair of substrates of the liquid crystal display device surface arrangement in the present invention; mutual wires formed on the substrate sandwiched on one side of the board; connected with the gate wiring and the source switching device, The comb-shaped pixels connected to the source electrode are connected to the comb-shaped pixels. The plurality of pixels include: a certain distance to face the liquid crystal layer between the substrates; the gate wiring and the source wiring at the base fork. Connected switching elements; a plurality of electrodes arranged approximately parallel to the upper line; and phase electrodes of the switching elements approximately parallel and alternately

200305046-_ V. Description of the invention (3) A comb-shaped common electrode formed by a plurality of electrodes of each ^. A voltage is applied between the common electrodes of the daytime half ttti, and an electric% of about f thousand 与 from the substrate surface is applied to the liquid crystal display device on the liquid crystal layer, and the upper part HΪ and the common part of the common electrode Overlapping with insulating film, two, heart, flavor film is composed of multiple layers of insulating film. By such a rate. '. In order to greatly reduce the occurrence of short circuit between the source wiring and the common electrode, iU is formed by a plurality of long film steps. To remove foreign matter, a washing step can be added between Γ, and membrane steps. In this way, the washing step including washing with a brush can be included in the washing step. In the appropriate embodiment, μ, +, and | | combs with the above-mentioned common electrodes: electric two; electrodes, and The structure of the LCD driver can obtain the viewing angles that occur in two directions. The LCD panel in a specific area is close to the central part of the LCD in a specific area, and does not overlap with the source wiring. : The structure of the central part of the said element can effectively prevent the formation. Hunting for such a structure, a short circuit between the source wiring and the common electrode occurs at the bent portion of the X-defect. In addition, the above-mentioned day element electrode is directly connected to the switching element. _ It is best to have at least 2 hunters in the form of a pudding electrode, even if it is 2185-5550-PF (Nl); Ahddub.ptd $ 6,200305046 5. Description of the invention (4)- There are defects in the copy, as long as not both of them have § forbearance. So you can increase yield. In the preferred embodiment, the pixel electrode's absolute value of the pixel electrode has at least two angles formed by two different pixel and electric directions. ^ ^ ^ ^ ^, ^ ^ 40 ^ day element electrode The structure formed with respect to the rubbing direction = is connected in this way, and the electricity at the tip of the day element can be charged. The basis = the direction of the rotation 'can make the liquid crystal rotated in the opposite rotation due to the weighting to quickly return to the positive rotation direction to reduce the display failure caused by the load on the display surface. In order to improve the display time ii of the film, the area where the source wiring and the switching element have the same line in the up-and-down direction, and the area where the common electrode overlaps with the common electrode can be formed in this way. Improving the inter-layer emission, and the common capacitor wiring connected to the common electrode can be set independently in the daytime without overlapping the plate electrode wiring, which can reduce the number of rising steps of the source wiring. This structure increases the probability of disconnection failure. The other low-voltage source wiring in the present month includes other liquid crystal display devices, including: one of the face-to-face configuration 1 · 1 ™ pitch in the above substrate = side ί: Uto = liquid crystal layer between the f Wire and source wiring; the plate forms' interconnecting and intersecting pole matching components; the above-mentioned door is closed-two / wire and the source wiring are connected to the switch; the switch 7C is connected to the source wiring approximately Coming in parallel 2185-5550-PF (Nl); Ahddub.ptd 200305046 V. Description of the invention (5) _ The comb-shaped switching element formed by a plurality of electrodes arranged is connected to the plural number of the above-mentioned day element electrodes: U and The above electrode: the electric field is applied between the day electrode and the common electrode, and the electric field on the substrate is approximately parallel, and the electric field is applied to the liquid 5 and the upper electrode, and the source electrode and the common electrode are filmed. It is overlapped, and the common electrode overlaps the source wiring in the area of the insulation plate; the vicinity of the prime ring does not overlap with the source wiring. Can effectively prevent success. A short circuit between the source wiring and the common electrode occurs at the bent portion. Defective bending The other liquid crystal displays in the present invention are separated from each other by arranging a pair of substrates; a liquid crystal layer sandwiched by the above-mentioned substrate β with a certain distance from one side of the substrate; lines and source wiring; and The above-mentioned gate electrode poles are connected with: === components, and are connected with the source: poles. In the above pixel-like common current, the substrate surface is approximately parallel to the electric field plus: i ;: force: ΐ: ;; will be installed in the device, the above source wiring, and the last two days t liquid day, Will not be in the above source:; ::::; = or side-by-side bit // area where the above common electrode overlaps Page 8 2185-5550-PF (Nl); Ahddub.ptd 200305046 V. Description of the invention (6) on. With such a structure, the interlayer pressure resistance can be improved. The method for manufacturing a liquid crystal display device according to the present invention includes: a pair of substrates arranged face to face at a certain distance; and a / night crystal layer sandwiched between the substrates, on a substrate on one side of the substrates The formed gate wiring and source wiring crossing each other; a switching element connected to the above gate wiring and source wiring; a plurality of electrodes arranged in parallel to the above-mentioned switching element and connected to the disk source wiring A comb-shaped, plain electrode formed; and a comb-shaped common electrode formed by a plurality of electrodes arranged in parallel and alternately with the above-mentioned day element ^ and a plurality of electrodes connected in parallel with the switching element, and A voltage is applied between the electrode and the common lightning electrode, and an electric field approximately parallel to the substrate surface is applied to the liquid crystal layer. The manufacturing method of the liquid crystal display device includes the steps of: forming a source electrode; Forming an insulating film on the electrode several times to form several layers; forming the common current on the insulating film by overlapping the source electrode with the insulating film interposed therebetween Extreme steps. With the configuration of two =, the probability of source wiring and common electrode circuit can be greatly reduced. Here, the step of forming the above-mentioned insulating film is preferably a step of adding a washing step to the step of forming the plurality of acoustic film. This can remove foreign matter. 9. In particular, the above-mentioned washing step includes a washing step using a brush, which can remove foreign matter more effectively. ^ Effect of the invention: According to the present invention, it is possible to provide a method capable of reducing source wiring and common

200305046 V. Description of the invention (7) Liquid crystal display device with short circuit between electrodes and manufacturing method thereof. [Embodiment Mode] Embodiment 1 Liquid crystal display device in the present invention A pair of CF substrate and TFT substrate. Lines arranged face to face at a distance of ^ 17 ;. In addition, switching elements such as gate wiring, wiring, and source are formed. In the switching element: and ::; :: comb-shaped check formed by the plurality of electrodes of the connected m element, the electrode wiring is arranged in parallel, the plurality of electrodes are arranged in parallel and alternately to 2, and the denier is only 5 combs Shaped common electrode. By checking the voltage formed by several electrodes here, it can be approximately equal to the surface of the substrate; adding between the rows of electrodes. Figure 2 shows the liquid crystal display of the present invention: added to the liquid crystal layer. Figure. The enlarged pixel unit in the center is the same as or equivalent to the structure of the structure with the same reference numerals in FIG. 1 as those in FIG. 1, and is omitted here. It is the same as the day electrode described below with reference to FIG. 1. A plurality of electrodes of β In FIG. 2, a comb-shaped total of 1 formed by the plurality of electrodes of 5 is arranged in parallel and alternately toward the electrodes. 6 is connected to the thin film transistor. The blood and electrodes are also called comb-shaped pictures composed of a plurality of electrodes. The prime check wiring 3 is parallel to metal, IT0 (Indium Tin Oxide), etc. The property W is formed by the network (◦r). 7 is a common conductive film formed of a metal such as chromium (Cr) to form each wiring, and passes through 2185-5550-PF (Nl); Ahddub.ptd Page 10 200305046

A through hole is connected to the common electrode 5. As shown in FIG. 2, the common wiring 5 of the source wiring 3 provided between pixels adjacent to each other in the transverse direction of the electric field generation direction overlaps with each other. In other words, the source wiring 3 is in common with the insulating film 4 interposed therebetween. The electrodes 5 are overlapped as if they surround the source wiring 3. Fig. 3 illustrates the AA cross section of Fig. 2. As shown in Fig. 3, the source wiring is provided on the gate insulating film 2 formed of an insulating film such as SiN. 3. The film thickness of the source wiring 3 is, for example, 40 nm to 500 nm. An insulating film 4a is provided on the source wiring 3. The film thickness of the insulation film 4a is, for example, 200 to 300. _. At this time, a second insulating film 4b is provided on the first insulating film 4a. The thickness of the second insulating film b is, for example, 200 nm to 300 nm. A common electrode 5 is provided on the second insulating film. This The film thickness of the common electrode 5 is, for example, 100 nm. That is, the common electrode 5 is separated from the common electrode ′ at the pole I line 3 by two layers of insulating cores. Each of the insulating films 4 a and 4 b is made of Si N or SiO 2. The length of the long film is 8 9 ^ In these ten places, the insulating film provided between the source wiring 3 and the common electrode 5 is a 2 Λ Λ film. In the first insulating film 4 & 2. Insulating film # There is a cleaning step using a brush between this step and the v step. You can use this ::: to remove foreign objects. Especially by using a brush, the hunter's cleaning step using a brush can be effectively removed, even if One trowel of the first insulating film 4a is removed because the second insulating film 长 is grown after the cleaning step to insulate the source wiring 3 and the common electrode 5 consistently. Next, the insulation will be described using FIG. 4. The film 4 is composed of a plurality of layers: the effect. As in the example shown in FIG. 4U), FIG. 4 (b) ^: = can not avoid the occurrence of pinhole defects 41 &

200305046 V. Description of the invention (9) 4 2 a. It is also unavoidable that pinhole defects 41 b and 4 2 b occur on the second insulating film 4 b. However, in the structure shown in FIG. 4 (a), once pinhole defects 41 and 42 occur, a short circuit occurs between the source wiring 3 and the common electrode 5 and is relatively shown in FIG. 4 (b). In the construction, just the first! The pinhole defects 41a and 42a occurring in the insulating film 与 and the pinhole defects 41b and 42b occurring in the second insulating film 4b are not connected, and a short circuit does not occur between the source wiring 3 and the common electrode 5. That is, the structure in the embodiment i of the present invention shown in FIG. 4 (b) can greatly reduce the source wiring 3 and the common electrode compared with the structure shown in FIG. 4 (a). Probability of short circuit between 5 In this example, the length of the insulating film between the source wiring 3 and the common electrode 5 is eight or two times, but it is not limited to this. The effect can be obtained by dividing into three or more times. In this example, an example in which the source is bent in the same manner as the day electrode is described, but the same effect is not obtained when the source wiring is bent. 4 is the same as W. Next, a manufacturing flowchart of an embodiment of the present invention will be described with reference to FIG. 5. 'Every day before the day, as shown in Figure 5 (a), on the insulating substrate, it will be divided into 弋,, Ta, Mo, W, Ni, Cu, Au, Ag, etc. : Alloy, or 1T0 or other transparent conductive film, or this: = film 4 is formed by sputtering method or evaporation method, etc., using f phase and slicing layer to form gate wiring, And the capacity °, as shown in the form =, forming a nitrided structure :: 丄; Erb: Nisushi, polycrystalline and other semiconductor films 93, n-type m ^ Chen + P and other impure substances after n + amorphous stone, n + polycrystalline stone, etc.

200305046 V. Description of Invention (10)

The contact film is formed continuously and continuously. Next, contact J] fCVD, atmospheric pressure CVD, and reduced pressure CVD methods. Next, as shown in FIG. 5 (=: is processed into an island shape with the semiconductor film 93. HCu, AU, As is calculated, V will be Cr, Ai, Ti, D, a, Mo, a light-transmitting conductive film, 3 or ^ as the main component of the alloy, or ITO and other methods to form a film, Zhao phase f '2 multilayer film, etc. by sputtering or evaporation Touch the electrode and electrode without electrode or to form the electrode. In addition, the source contacts the film and is removed from the channel area.-Jun (especially as a first cover to etch the insulating film of the connection or successful: j: two or two, oxygen cut, no picture The description of 3 is divided into two or more times to form this and the second insulating film 4b. Then, the contact hole is formed by the photo / = chengdi ^ edge film 4a. The etching of the clothes plate and the connector is used to form the connection, as shown in Figure 5. As shown in (e), Ai, n M0, W, Mi, Cu, Au, Ag, etc., or those having a main component, a light-transmissive conductive film such as T0, or a multilayer of these are grown. Films, etc .: Add: Patterning to form pixel electrodes and counter electrodes 5. By the above steps, a TFT substrate constituting a liquid crystal display device of the electric field method of this embodiment mode can be manufactured. In addition, here ^ A liquid crystal 'M sealing material is sandwiched between the opposing substrates for access .: The liquid crystal molecules are aligned by rubbing, light alignment, etc .; a fixed angle f. For the method of arranging liquid crystals, any known method can be used. ”The gate wiring, source wiring, and common capacitor wiring are respectively connected to the idle wire 2185-5550-PF (Nl); Ahddub.ptd Page 13 200305046 V. Description of the invention (11)

Motion :; The original polar line drive circuit and the common capacitor wiring are connected with a power source to make a liquid crystal display device. < W implementation type 2 is referred to as a. FIG. 6 illustrates a liquid crystal display device in accordance with embodiment 2 of the present invention. The daylight unit shown in FIG. 1 has the same structure & source: line 3 and common The electrodes 5 are arranged to overlap. In this example, the source wiring 3, the common electrode 5, and the day element electrode 6 are bent at the central portion once. This bending point is provided in the common capacitor wiring portion 7. In this way, a curved electrode structure can be used to drive the liquid crystal in two directions, which can improve the lateral electric field method. The liquid crystal and the panel deteriorate the viewing angle characteristics in a specific direction. Although the source wiring 3 and the common electrode 5 are overlapped and arranged, In the vicinity of the central portion, a shape is adopted in which the source wiring 3 is avoided so that the two do not overlap. In addition, the common electrode 5 is formed with the source wiring 3 in a region other than the area near the central portion of the pixel, and is not overlapped with the source wiring 3 in the vicinity of the central portion of the pixel. With such a configuration, the source wiring 3 and the curved portion do not overlap, so the potential b in the structure aa, j U effectively prevents the source wiring 3 and the common electrode at the bent portion that is prone to be missing in structure. 5 short circuit. In addition, when the source wiring 3 and the ping-pong electrode 5 are overlapped on the bent portion near the central portion, as explained in the embodiment of the invention, the insulating film between the source wiring 3 and the common electrode 5 is preferably a film. . This is because, as described above, · bend = several times, 4 φ Shao is defective in the structure, so the short circuit between the source wiring 3 and the common implementation mode 3, and the through electrode 5 is likely to occur. FIG. 7 is a drawing illustrating liquid crystal display arrangement in Embodiment 3 of the present invention.

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Page 14 200305046

In particular, the structure in the vicinity of the TFT element will be described. As shown in the figure, the TFT: film G is composed of a semiconducting quarrel 揣 β 4 methyl electrode 8 formed of a ytterbium electrode 91, a source electrode 92, and amorphous silicon. The drain electrode 91 is connected to the daytime electrode 透过 through the through hole 911. The pixel electrode 6 has a comb-like structure, and has two day element electrodes 61 and two day element electrodes 62 in a total of 1 positions. Pick up. In this example, the drain electrode 91 is connected to two pixel electrodes 6 and 62, and even if a part of the day electrode is defective, it will not be considered as a point defect. Therefore, with this structure, as long as not two of them have defects, the yield can be improved. [Embodiment Mode 4] Fig. § illustrates a structure of a picture ', j of a liquid crystal display device in Embodiment Mode 4 of the present invention. C in the figure refers to the rubbing direction. As can be understood from the figure §, the angles between the common electrode 5 and the pixel electrode 6 and the rubbing direction in the ^ = prime part are respectively 2 absolute values of 0 and θ 2. In particular, the absolute value of the angle formed by the day element electrode 6: = with respect to the rubbing direction is set to be greater than the absolute value of the angle formed by the day element electrode with respect to the rubbing direction. The blade direction of the electric field at the tip of the pixel electrode 6 can be controlled to the direction in which the liquid crystal should rotate, and the liquid crystal rotating in the reverse rotation direction due to weighting can quickly return to the positive rotation direction. Therefore, the display failure caused by the load on the display surface can be quickly reduced. The failure of the so-called weight marks that can be seen for a long time when the weight is $, can improve the display quality. In addition, it is not necessary to set up to prevent the display surface. The increased weight of the protective plate has the effect of reducing the manufacturing cost of the liquid crystal display device.

Page 15 2185-5550-PF (Nl); Ahddub.ptd 200305046 V. Description of the invention (13) Implementation mode 5 Fig. 9 illustrates the structure of a liquid crystal display nested pixel unit in Embodiment 5 of the present invention. In particular, the structure in the vicinity of the TFT element will be described. As shown in the figure, the TFT element is composed of a drain electrode 91, a source electrode 92, a semiconductor film 93 made of amorphous stone, and a gate electrode 8. All or part of the source wiring 3 and the side surface of the body film 93 are at the position E side by side on the same plane or line in the up-down direction (the direction of the paper surface), not in the overlapping area of the source straight 3 and the common electrode 5 on. That is, the position of e is outside the edge portion β of the edge where the source-by-cable wiring 3 and the common electrode 5 overlap. Fig. 1 illustrates the cross section including position Ε-Ε ,. Return to 0 (a) When the source wiring 3 and all or the side surfaces of the semiconductor film 93 are positioned side by side on the same plane or on the same line E in the overlapping area of the source line 3 and the common electrode 5, The cross-section is as shown in FIG. 10 (with timing) because the semiconductor film 93 is formed. Compared with the structure and the skin shown in FIG. 10 (a), the central portion becomes higher corresponding to the thickness of the semiconductor film 93. Another In the phase forming surface, the structure shown in the square and the peripheral portion of the semiconductor film 93 where the source wiring 3 and the semiconductor film 93 do not exist are the same as those shown in FIG. 10 (b). Therefore, the structure shown in FIG. Compared with the structure shown in Fig. 10 (a), the step between the central portion and the peripheral portion in the structure shown in the figure is larger and the figure is lower. The breakdown voltage will decrease. Therefore, the liquid crystal in this embodiment In the display device, all or a part of the side surface of the wiring 3 and the semiconductor film 93 is formed on a region E side by side where the source electrode is on the same plane or line, and the common electrode 5 overlaps in a direction different from each other. The structure of the electrode wiring 3 and the re-winder,

2185-5550-PF (Nl); Ahddub.ptd 200305046 V. Description of the invention (14) In order to improve inter-layer financial pressure. Here, when all or a part of the side surface of the source wiring 3 and the semiconductor film 93 are on the same plane or on the same line in the up-down direction, and the position E is in a region where the source wiring 3 and the common electrode 5 overlap, The structure shown in FIG. 11 (a) and the structure shown in FIG. 11 (b) are included. In the structure shown in FIG. N (a), the inside of the source wiring 3 is juxtaposed with one side surface of the semiconductor film 93 on the same plane in the up-down direction, and this position is located in the overlapping area of the source wiring 3 and the common electrode 5 on. In the configuration shown in FIG. N (b), the source wiring 3 intersects with the semiconductor film 93 and is arranged on the line in the up-down direction, and its position is located on the source wiring 3. / ..., area where the hafnium electrode 5 overlaps Embodiment 6 FIG. 12 illustrates the structure of the pixel unit in Embodiment 6 of the present invention. As shown in the figure, the adjoining daytime elements that are common to each other are not connected to each other and are independent of each other. Zhuang, ', in the horizontal direction are connected to the common electrode 5 through the through hole 72, and become the common capacitance line 7 of the phase 1 via the capacitor wiring. Therefore, a total of pixels are formed with independent electrode patterns. ', 0 connected, can be shown in the above-mentioned area F, where each day element is independent of the common energizing core, is arranged in the source matching :: electrode pattern, as shown in Figure 12 Therefore, the source can be wired On the non-overlapping positions. When the capacitive electrode 7 is connected in the adjacent day-to-day interval, the number of items of X is reduced to the disconnection failure of the source wiring 3 and the source matching when the common current is applied. That is, the probability of a road failure can be reduced to improve the yield. Short of common capacitor electrode 7 Page 17 2185-5550-PF (Nl); Ahddub.ptd 200305046 Brief description of the drawings [Fig. 1 (a) to Fig. 1 (b)] Description of the liquid crystal display device in the present invention Figure of the day prime department. FIG. 2 is a diagram illustrating a daylight unit of a liquid crystal display device in the present invention. [Fig. 3] A cross-sectional view of an overlapping portion of a source electrode and a common electrode in a pixel portion of a liquid crystal display device of the present invention. [FIG. 4 (a) to FIG. 4 (b)] A diagram for explaining a short circuit between a source electrode and a common electrode in a liquid crystal display device in the present invention. [FIG. 5 (a) to FIG. 5 (e)] A manufacturing flowchart of a liquid crystal display device in the present invention is explained. Fig. 6 is a diagram illustrating a daylight unit of a liquid crystal display device in the present invention. [FIG. 7] A diagram illustrating a daylight unit of a liquid crystal display device in the present invention. [FIG. 8] A diagram illustrating a daylight unit of a liquid crystal display device in the present invention. FIG. 9 is a diagram illustrating a daylight unit of a liquid crystal display device in the present invention. [Fig. 10 (a) to Fig. 10 (b)] A diagram for explaining the effect when the source wiring, the common current electrode and the semiconductor film overlap. [FIG. 11 (a) to FIG. 11 (b)] A diagram illustrating an example of a structure in which a common electrode and a semiconductor film are overlapped when source wiring is performed. [Fig. 12] A diagram illustrating a daylight unit of a liquid crystal display device in the present invention. [Fig. 13 (a) to Fig. 13 (b)] A diagram illustrating a daylight portion of a conventional liquid crystal display device. Explanation of symbols: 2 ~ gate insulating film 3 ~ source electrode

2185-5550-PF (Nl); Ahddub.ptd Page 18 200305046 Brief description of the diagram 4 ~ Insulation film pole ^ " ^ \ H 素 极 ^ 日 IBglv Βπ I l 6 8 5 ~ common electrode 7 ~ common capacitor electrode

2185-5550-PF (Nl); Ahddub.ptd Page 19

Claims (1)

200305046 1 · A liquid crystal display device, comprising: a pair of substrates, arranged at a certain distance to face to face with a liquid crystal layer, sandwiched between the above substrates; 'interrogation wiring and source wiring, which form an intersection with each other on the above substrate; The element on the substrate is in the form of a sub-pixel electrode with the gate wiring and the source wiring, and is connected to the switching element B with a large taxi, + connected to the source. It is formed by a plurality of electrodes arranged together; and a common electrode is connected to the switching element, and the plurality of poles on the disk are arranged in parallel and alternately. The feature is that a voltage is applied between the pixel electrode and the common electrode. An electric field approximately parallel to the substrate surface is applied to the liquid crystal layer, and the source electrode and a part of the common electrode are overlapped with an insulating film interposed therebetween, and the plutonium insulating film is composed of a plurality of insulating films. The liquid crystal display device according to item 1 of the patent application scope, wherein 'the insulating film is formed by a plurality of long film steps. 3. The liquid according to item 2 of the patent application scope A crystal display device, wherein 'the washing step is provided between the long film steps of the insulation film of 5.50. 4. The liquid crystal display device according to item 3 of the scope of patent application, wherein' the washing step includes washing with a brush. Net step. 5 · The liquid crystal display device described in item 1, 2, 3, or 4 of the patent application scope, wherein the comb-shaped electrode of the pixel electrode is connected to the common electrode. 200305046 Child-like = Shen =; mouth; curved, curved near the central part of the day. In the liquid crystal display device according to item 5 of the common electrode, the source wiring is superimposed on the source electrode: baryon t§ Xuan Tiansu near the central part of the source wiring # ^ in the pixel The central part is not connected to the liquid crystal display device described in item 1 of the range, and at least two comb-shaped electrodes connected to the μ-line are directly connected to the switching element. In the liquid crystal display device, the absolute value of the angle between the rim element and the rubbing direction has a value of at least 2 j /, and the angle formed by the tip of the day electrode with respect to the rubbing direction is twenty absolute. The value 'is set to be larger than the absolute value of the angle made by the daylight electrode connected to the capricorn direction with respect to it. t The liquid crystal display device according to item 1 of the scope of application for a patent, wherein "the source wiring and the side of the semiconductor film of the switching element are all or side by side, the same side or line in the up-down direction of the sigma blade, It is not on a region where the source wiring overlaps the common electrode. 10. The liquid crystal display device according to item 1 of the scope of patent application, wherein the common capacitor wiring connected to the common electrode is provided independently in the daytime. 11 · A liquid crystal display device, comprising: a pair of substrates arranged face to face at a certain distance; a liquid crystal layer sandwiched between the substrates; a gate wiring and a source wiring located on one side of the substrate 200305046 6. The scope of the patent application is formed and cross each other; the inter-electrode wiring and the source wiring are connected; the plurality of lines are arranged in parallel to connect J, and the comb-like common electrode with the source is connected with the switching element Connected, the plurality of electrodes of the i electrode are formed by approximately flat rods connected to the pixel; the plurality of electrodes arranged by each other are characterized in that the electric field on the day electrode and the common electrode surface are applied in approximately parallel electric fields to the liquid crystal Layer, a part of the through electrode of the substrate is overlapped with an insulating film, and it is near the central part except the celestial electrode: it is overlapped with the current-carrying wiring, and is 1 or above the celestial center. , 'And the source overlap. 1 、 A kind of liquid crystal display device that is not in phase with the source wiring, including: · a substrate, which is arranged face to face at a certain distance; a liquid crystal layer sandwiched between the substrates; 'gate wiring and source wiring , Formed on the base, cross each other; on the substrate on the side of the forged r :: where the pieces are connected to the gate wiring and the source wiring · comb-shaped pixel electrodes are approximately parallel to the switch: η line Formed by a plurality of electrodes arranged ^; the source electrode is provided with a comb-like common electrode, and the plurality of electrodes connected to the switching element are approximately parallel to each other; Page 22 2185-5550-PF (Nl); Ahddub.ptd 200305046 6. The scope of the patent application is characterized by the application of a voltage between the pixel electrode and the common electrode, which will be approximately parallel to the substrate surface. An electric field is applied to the liquid crystal layer, the source wiring, and all or part of the side surface of the semiconductor film of the switch 7G side by side on the same surface or line in the up-down direction, and will not be energized between the source wiring and the common wiring. The overlapping area. 1 3 · A method for manufacturing a liquid crystal display device, the liquid crystal display device comprising: a pair of substrates arranged face to face at a certain distance; a liquid crystal layer 'sandwiched between the substrates; /, gate wiring and source wiring, in The switching element is connected to the gate wiring and the source wiring; a comb-shaped pixel electrode is connected to the switching element, and the wires and wires are arranged approximately in parallel. It is formed by a plurality of electrodes; a common electrode with a comb-shaped source and a plurality of electrodes of the switch element electrode is approximately parallel and intersects with the plurality of electrodes, and is formed by the day element; An electric field approximately parallel to the common electrode between the common electrodes is applied to the liquid crystal layer. The characteristics of the common electrode and the substrate include: a step of forming the source electrode; dividing the source electrode into a plurality of times to form a plurality. Step 200305046 6. The scope of the patent application ′ step; and. The step of forming the common electrode on the insulating film overlapping the source electrode through the insulating film. 14. The method for manufacturing a liquid crystal display device according to item 13 of the scope of patent application, wherein the step of forming an insulating film is preferably a step of adding a cleaning step between the steps of forming a plurality of insulating films. 15. The method for manufacturing a liquid crystal display device according to item 14 of the scope of patent application, wherein the washing step includes a washing step using a brush. 2185-5550-PF (Nl); Ahddub.ptd Page 24